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• Storing the most current version of the cluster database
• Guaranteeing that only one set of active communicating nodes is allowed to operate as a cluster
Cluster concepts
Figure 33 illustrates a typical cluster configuration with the corresponding storage elements. The
diagram progresses from the physical disks to the file shares, showing the relationship between both
the cluster elements and the physical devices underlying them. While the diagram only illustrates two
nodes, the same concepts apply for multi-node deployments.
Figure 33 Cluster concepts diagram
.
Sequence of events for cluster resources
The sequence of events in the diagram includes:
1. Physical disks are combined into RAID arrays and LUNs.
2. LUNS are designated as basic disks, formatted, and assigned a drive letter via Disk Manager.
Cluster administration90
- HP StorageWorks 1
- Contents 3
- About this guide 13
- Rack stability 14
- HP technical support 15
- Customer self repair 15
- Subscription service 15
- HP websites 15
- Documentation feedback 16
- Setup overview 17
- Check kit contents 17
- Access the storage system 18
- Startup Wizard 20
- Complete system configuration 21
- Additional access methods 22
- Default storage settings 23
- Default boot sequence 25
- StatusItem / Description 28
- 1. PCIe slot 5 34
- SAS and SATA hard drive LEDs 36
- Systems Insight Display LEDs 37
- StatusInternal health LED 40
- Systems Insight 40
- Display LED and 40
- 3 Administration tools 41
- Share and Storage Management 42
- Configuring ADLDS 43
- Single Instance Storage 44
- Print Management 45
- Administration tools46 46
- 4 Storage management overview 47
- Physical storage elements 48
- Logical storage elements 50
- Partitions 51
- File system elements 52
- File sharing elements 52
- Network adapter teaming 53
- Management tools 53
- Management Agents 54
- 5 File server management 55
- File services management 56
- Array management utilities 57
- Array Configuration Utility 57
- Disk Management utility 58
- Scheduling defragmentation 59
- Disk quotas 59
- Adding storage 60
- Volume shadow copies 62
- Identifying the volume 63
- Allocating disk space 63
- Identifying the storage area 64
- Mounted drives 65
- Managing shadow copies 65
- The shadow copy cache file 66
- Set schedules 68
- Disabling shadow copies 69
- File server management70 70
- SMB shadow copies 71
- NFS shadow copies 72
- Recovery of files or folders 73
- Recovering a folder 74
- Folder and share management 75
- Folder management 76
- File server management78 78
- File server management80 80
- Share management 82
- Defining Access Control Lists 83
- File Server Resource Manager 84
- File screening management 85
- Storage reports 85
- Antivirus 86
- 6 Cluster administration 87
- Cluster terms and components 88
- Cluster groups 89
- Virtual servers 89
- Failover and failback 89
- Quorum disk 89
- Cluster concepts 90
- Cluster planning 91
- Storage planning 92
- Network planning 92
- Protocol planning 93
- Before beginning installation 94
- Cluster installation 95
- Setting up networks 96
- Using Cluster Administrator 97
- Creating a cluster 97
- Adding nodes to a cluster 98
- Cluster group overview 98
- Node-based cluster groups 99
- Load balancing 99
- Resource planning 99
- NFS cluster-specific issues 100
- Creating file share resources 101
- Shadow copies in a cluster 102
- Extend a LUN in a cluster 102
- Print services in a cluster 103
- Failing over and failing back 104
- Restarting one cluster node 105
- Powering down the cluster 105
- Powering up the cluster 106
- Maintenance and service 108
- Certificate of Authenticity 108
- 8 System recovery 109
- System recovery110 110
- FCC rating label 111
- Modification 112
- Class A equipment 112
- European Union notice 113
- Japanese notices 113
- Korean notices 114
- Taiwanese notices 114
- Laser compliance notices 115
- French laser notice 116
- German laser notice 116
- Italian laser notice 116
- Recycling notices 117
- Bulgarian notice 118
- Czech notice 118
- Danish notice 118
- Dutch notice 118
- Estonian notice 119
- Finnish notice 119
- French notice 119
- German notice 119
- Greek notice 120
- Hungarian notice 120
- Italian notice 120
- Latvian notice 120
- Lithuanian notice 121
- Polish notice 121
- Portuguese notice 121
- Romanian notice 121
- Slovak notice 122
- Spanish notice 122
- Swedish notice 122
- Turkish notice 122
- Battery replacement notices 123
- French battery notice 124
- German battery notice 124
- Italian battery notice 125
- Japanese battery notice 125
- Spanish battery notice 126
- Index128 128
- Index130 130
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